Finding the Fourth Proportional to 1,194.72, 1,645.12 and 1,191.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194.72 : 1,645.12 = 1,191.04 : x
2. Step 2: Convert to fraction form
   1,194.72/1,645.12 = 1,191.04/x
3. Step 3: Cross multiply
   1,194.72x = 1,645.12 × 1,191.04
4. Step 4: Simplify right side
   1,194.72x = 1,959,403.72
5. Step 5: Solve for x
   x = 1,959,403.72/1,194.72
6. Step 6: Final answer
   x = 1,640.05